English verb conjugation
COULD ADVANTAGE

Regular verb: advantage - advantaged - advantaged

Affirmation

Simple form	V-ing form
I could advantage you could advantage he could advantage we could advantage you could advantage they could advantage	I could be advantaging you could be advantaging he could be advantaging we could be advantaging you could be advantaging they could be advantaging
Perfect	V-ing perfect
I could have advantaged you could have advantaged he could have advantaged we could have advantaged you could have advantaged they could have advantaged	I could have been advantaging you could have been advantaging he could have been advantaging we could have been advantaging you could have been advantaging they could have been advantaging

Negation

Simple form	V-ing form
I could not advantage you could not advantage he could not advantage we could not advantage you could not advantage they could not advantage	I could not be advantaging you could not be advantaging he could not be advantaging we could not be advantaging you could not be advantaging they could not be advantaging
Perfect	V-ing perfect
I could not have advantaged you could not have advantaged he could not have advantaged we could not have advantaged you could not have advantaged they could not have advantaged	I could not have been advantaging you could not have been advantaging he could not have been advantaging we could not have been advantaging you could not have been advantaging they could not have been advantaging

Interrogative form

Simple form	V-ing form
could I advantage? could you advantage? could he advantage? could we advantage? could you advantage? could they advantage?	could I be advantaging? could you be advantaging? could he be advantaging? could we be advantaging? could you be advantaging? could they be advantaging?
Perfect	V-ing perfect
could I have advantaged? could you have advantaged? could he have advantaged? could we have advantaged? could you have advantaged? could they have advantaged?	could I have been advantaging? could you have been advantaging? could he have been advantaging? could we have been advantaging? could you have been advantaging? could they have been advantaging?

Interro-negative form

Simple form	V-ing form
could I not advantage? could you not advantage? could he not advantage? could we not advantage? could you not advantage? could they not advantage?	could I not be advantaging? could you not be advantaging? could he not be advantaging? could we not be advantaging? could you not be advantaging? could they not be advantaging?
Perfect	V-ing perfect
could I not have advantaged? could you not have advantaged? could he not have advantaged? could we not have advantaged? could you not have advantaged? could they not have advantaged?	could I not have been advantaging? could you not have been advantaging? could he not have been advantaging? could we not have been advantaging? could you not have been advantaging? could they not have been advantaging?